deinterleave.m

The GSMSP uses the USRP hardware device to receive data from the GSM band. This data is raw and pre

function [ rx_enc ] = deinterleave(rx_data_matrix)
%
% deinterleave:  
%           This function does deinterleaving of de-multiplexed GSM
%           information bursts, eg. 114 sequential bits as extracted 
%           from a GSM burst. The input is 8 x 114 bit, and the output 
%           is a single 456 bit information block, as deinterleaved from the
%           input.
%
% SYNTAX:   [ rx_enc ] = deinterleave(rx_data_matrix)
%
% INPUT:    rx_data_matrix:
%                 The 'latest' 8 instances of rx_data, which are 114 bit
%                 long, and must be stored in the rows of rx_data_matrix. If
%                 the bursts in the matrix are numbered as they sre
%                 received, the burst in row one has number one, etc.
%
% OUTPUT:   rx_enc: 
%                 A 456 bit datablock, as demultiplexed from the 8 input 
%                 bursts.
%
% WARNINGS: Observe that not all 8 x 114 bits are contained in the output.
%
% TEST(S):  interleave -> deinterleave = 0 Errors.
%
% AUTHOR:   Jan H. Mikkelsen / Arne Norre Ekstr鴐
% EMAIL:    [e-mail] / [e-mail]
%
% $Id: deinterleave.m,v 1.4 1997/11/20 11:12:27 aneks Exp $
rx_enc(1)=rx_data_matrix(1,1);
rx_enc(2)=rx_data_matrix(2,99);
rx_enc(3)=rx_data_matrix(3,83);
rx_enc(4)=rx_data_matrix(4,67);
rx_enc(5)=rx_data_matrix(5,52);
rx_enc(6)=rx_data_matrix(6,36);
rx_enc(7)=rx_data_matrix(7,20);
rx_enc(8)=rx_data_matrix(8,4);
rx_enc(9)=rx_data_matrix(1,101);
rx_enc(10)=rx_data_matrix(2,85);
rx_enc(11)=rx_data_matrix(3,69);
rx_enc(12)=rx_data_matrix(4,53);
rx_enc(13)=rx_data_matrix(5,38);
rx_enc(14)=rx_data_matrix(6,22);
rx_enc(15)=rx_data_matrix(7,6);
rx_enc(16)=rx_data_matrix(8,104);
rx_enc(17)=rx_data_matrix(1,87);
rx_enc(18)=rx_data_matrix(2,71);
rx_enc(19)=rx_data_matrix(3,55);
rx_enc(20)=rx_data_matrix(4,39);
rx_enc(21)=rx_data_matrix(5,24);
rx_enc(22)=rx_data_matrix(6,8);
rx_enc(23)=rx_data_matrix(7,106);
rx_enc(24)=rx_data_matrix(8,90);
rx_enc(25)=rx_data_matrix(1,73);
rx_enc(26)=rx_data_matrix(2,57);
rx_enc(27)=rx_data_matrix(3,41);
rx_enc(28)=rx_data_matrix(4,25);
rx_enc(29)=rx_data_matrix(5,10);
rx_enc(30)=rx_data_matrix(6,108);
rx_enc(31)=rx_data_matrix(7,92);
rx_enc(32)=rx_data_matrix(8,76);
rx_enc(33)=rx_data_matrix(1,59);
rx_enc(34)=rx_data_matrix(2,43);
rx_enc(35)=rx_data_matrix(3,27);
rx_enc(36)=rx_data_matrix(4,11);
rx_enc(37)=rx_data_matrix(5,110);
rx_enc(38)=rx_data_matrix(6,94);
rx_enc(39)=rx_data_matrix(7,78);
rx_enc(40)=rx_data_matrix(8,62);
rx_enc(41)=rx_data_matrix(1,45);
rx_enc(42)=rx_data_matrix(2,29);
rx_enc(43)=rx_data_matrix(3,13);
rx_enc(44)=rx_data_matrix(4,111);
rx_enc(45)=rx_data_matrix(5,96);
rx_enc(46)=rx_data_matrix(6,80);
rx_enc(47)=rx_data_matrix(7,64);
rx_enc(48)=rx_data_matrix(8,48);
rx_enc(49)=rx_data_matrix(1,31);
rx_enc(50)=rx_data_matrix(2,15);
rx_enc(51)=rx_data_matrix(3,113);
rx_enc(52)=rx_data_matrix(4,97);
rx_enc(53)=rx_data_matrix(5,82);
rx_enc(54)=rx_data_matrix(6,66);
rx_enc(55)=rx_data_matrix(7,50);
rx_enc(56)=rx_data_matrix(8,34);
rx_enc(57)=rx_data_matrix(1,17);
rx_enc(58)=rx_data_matrix(2,1);
rx_enc(59)=rx_data_matrix(3,99);
rx_enc(60)=rx_data_matrix(4,83);
rx_enc(61)=rx_data_matrix(5,68);
rx_enc(62)=rx_data_matrix(6,52);
rx_enc(63)=rx_data_matrix(7,36);
rx_enc(64)=rx_data_matrix(8,20);
rx_enc(65)=rx_data_matrix(1,3);
rx_enc(66)=rx_data_matrix(2,101);
rx_enc(67)=rx_data_matrix(3,85);
rx_enc(68)=rx_data_matrix(4,69);
rx_enc(69)=rx_data_matrix(5,54);
rx_enc(70)=rx_data_matrix(6,38);
rx_enc(71)=rx_data_matrix(7,22);
rx_enc(72)=rx_data_matrix(8,6);
rx_enc(73)=rx_data_matrix(1,103);
rx_enc(74)=rx_data_matrix(2,87);
rx_enc(75)=rx_data_matrix(3,71);
rx_enc(76)=rx_data_matrix(4,55);
rx_enc(77)=rx_data_matrix(5,40);
rx_enc(78)=rx_data_matrix(6,24);
rx_enc(79)=rx_data_matrix(7,8);
rx_enc(80)=rx_data_matrix(8,106);
rx_enc(81)=rx_data_matrix(1,89);
rx_enc(82)=rx_data_matrix(2,73);
rx_enc(83)=rx_data_matrix(3,57);
rx_enc(84)=rx_data_matrix(4,41);
rx_enc(85)=rx_data_matrix(5,26);
rx_enc(86)=rx_data_matrix(6,10);
rx_enc(87)=rx_data_matrix(7,108);
rx_enc(88)=rx_data_matrix(8,92);
rx_enc(89)=rx_data_matrix(1,75);
rx_enc(90)=rx_data_matrix(2,59);
rx_enc(91)=rx_data_matrix(3,43);
rx_enc(92)=rx_data_matrix(4,27);
rx_enc(93)=rx_data_matrix(5,12);
rx_enc(94)=rx_data_matrix(6,110);
rx_enc(95)=rx_data_matrix(7,94);
rx_enc(96)=rx_data_matrix(8,78);
rx_enc(97)=rx_data_matrix(1,61);
rx_enc(98)=rx_data_matrix(2,45);
rx_enc(99)=rx_data_matrix(3,29);
rx_enc(100)=rx_data_matrix(4,13);
rx_enc(101)=rx_data_matrix(5,112);
rx_enc(102)=rx_data_matrix(6,96);
rx_enc(103)=rx_data_matrix(7,80);
rx_enc(104)=rx_data_matrix(8,64);
rx_enc(105)=rx_data_matrix(1,47);
rx_enc(106)=rx_data_matrix(2,31);
rx_enc(107)=rx_data_matrix(3,15);
rx_enc(108)=rx_data_matrix(4,113);
rx_enc(109)=rx_data_matrix(5,98);
rx_enc(110)=rx_data_matrix(6,82);
rx_enc(111)=rx_data_matrix(7,66);
rx_enc(112)=rx_data_matrix(8,50);
rx_enc(113)=rx_data_matrix(1,33);
rx_enc(114)=rx_data_matrix(2,17);
rx_enc(115)=rx_data_matrix(3,1);
rx_enc(116)=rx_data_matrix(4,99);
rx_enc(117)=rx_data_matrix(5,84);
rx_enc(118)=rx_data_matrix(6,68);
rx_enc(119)=rx_data_matrix(7,52);
rx_enc(120)=rx_data_matrix(8,36);
rx_enc(121)=rx_data_matrix(1,19);
rx_enc(122)=rx_data_matrix(2,3);
rx_enc(123)=rx_data_matrix(3,101);
rx_enc(124)=rx_data_matrix(4,85);
rx_enc(125)=rx_data_matrix(5,70);
rx_enc(126)=rx_data_matrix(6,54);
rx_enc(127)=rx_data_matrix(7,38);
rx_enc(128)=rx_data_matrix(8,22);
rx_enc(129)=rx_data_matrix(1,5);
rx_enc(130)=rx_data_matrix(2,103);
rx_enc(131)=rx_data_matrix(3,87);
rx_enc(132)=rx_data_matrix(4,71);
rx_enc(133)=rx_data_matrix(5,56);
rx_enc(134)=rx_data_matrix(6,40);
rx_enc(135)=rx_data_matrix(7,24);
rx_enc(136)=rx_data_matrix(8,8);
rx_enc(137)=rx_data_matrix(1,105);
rx_enc(138)=rx_data_matrix(2,89);
rx_enc(139)=rx_data_matrix(3,73);
rx_enc(140)=rx_data_matrix(4,57);
rx_enc(141)=rx_data_matrix(5,42);
rx_enc(142)=rx_data_matrix(6,26);
rx_enc(143)=rx_data_matrix(7,10);
rx_enc(144)=rx_data_matrix(8,108);
rx_enc(145)=rx_data_matrix(1,91);
rx_enc(146)=rx_data_matrix(2,75);
rx_enc(147)=rx_data_matrix(3,59);
rx_enc(148)=rx_data_matrix(4,43);
rx_enc(149)=rx_data_matrix(5,28);
rx_enc(150)=rx_data_matrix(6,12);
rx_enc(151)=rx_data_matrix(7,110);
rx_enc(152)=rx_data_matrix(8,94);
rx_enc(153)=rx_data_matrix(1,77);
rx_enc(154)=rx_data_matrix(2,61);
rx_enc(155)=rx_data_matrix(3,45);
rx_enc(156)=rx_data_matrix(4,29);
rx_enc(157)=rx_data_matrix(5,14);
rx_enc(158)=rx_data_matrix(6,112);
rx_enc(159)=rx_data_matrix(7,96);
rx_enc(160)=rx_data_matrix(8,80);
rx_enc(161)=rx_data_matrix(1,63);
rx_enc(162)=rx_data_matrix(2,47);
rx_enc(163)=rx_data_matrix(3,31);
rx_enc(164)=rx_data_matrix(4,15);
rx_enc(165)=rx_data_matrix(5,114);
rx_enc(166)=rx_data_matrix(6,98);
rx_enc(167)=rx_data_matrix(7,82);
rx_enc(168)=rx_data_matrix(8,66);
rx_enc(169)=rx_data_matrix(1,49);
rx_enc(170)=rx_data_matrix(2,33);
rx_enc(171)=rx_data_matrix(3,17);
rx_enc(172)=rx_data_matrix(4,1);
rx_enc(173)=rx_data_matrix(5,100);
rx_enc(174)=rx_data_matrix(6,84);
rx_enc(175)=rx_data_matrix(7,68);
rx_enc(176)=rx_data_matrix(8,52);
rx_enc(177)=rx_data_matrix(1,35);
rx_enc(178)=rx_data_matrix(2,19);
rx_enc(179)=rx_data_matrix(3,3);
rx_enc(180)=rx_data_matrix(4,101);
rx_enc(181)=rx_data_matrix(5,86);
rx_enc(182)=rx_data_matrix(6,70);
rx_enc(183)=rx_data_matrix(7,54);
rx_enc(184)=rx_data_matrix(8,38);
rx_enc(185)=rx_data_matrix(1,21);
rx_enc(186)=rx_data_matrix(2,5);
rx_enc(187)=rx_data_matrix(3,103);
rx_enc(188)=rx_data_matrix(4,87);
rx_enc(189)=rx_data_matrix(5,72);
rx_enc(190)=rx_data_matrix(6,56);
rx_enc(191)=rx_data_matrix(7,40);
rx_enc(192)=rx_data_matrix(8,24);
rx_enc(193)=rx_data_matrix(1,7);
rx_enc(194)=rx_data_matrix(2,105);
rx_enc(195)=rx_data_matrix(3,89);
rx_enc(196)=rx_data_matrix(4,73);
rx_enc(197)=rx_data_matrix(5,58);
rx_enc(198)=rx_data_matrix(6,42);
rx_enc(199)=rx_data_matrix(7,26);
rx_enc(200)=rx_data_matrix(8,10);
rx_enc(201)=rx_data_matrix(1,107);
rx_enc(202)=rx_data_matrix(2,91);
rx_enc(203)=rx_data_matrix(3,75);
rx_enc(204)=rx_data_matrix(4,59);
rx_enc(205)=rx_data_matrix(5,44);
rx_enc(206)=rx_data_matrix(6,28);
rx_enc(207)=rx_data_matrix(7,12);
rx_enc(208)=rx_data_matrix(8,110);
rx_enc(209)=rx_data_matrix(1,93);
rx_enc(210)=rx_data_matrix(2,77);
rx_enc(211)=rx_data_matrix(3,61);
rx_enc(212)=rx_data_matrix(4,45);
rx_enc(213)=rx_data_matrix(5,30);
rx_enc(214)=rx_data_matrix(6,14);